19071057604 has 27 divisors (see below), whose sum is σ = 34579397671. Its totient is φ = 9202850720.

The previous prime is 19071057583. The next prime is 19071057611. The reversal of 19071057604 is 40675017091.

The square root of 19071057604 is 138098.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 8519659204 + 10551398400 = 92302^2 + 102720^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8008494 + ... + 8010874.

Almost surely, 2^19071057604 is an apocalyptic number.

19071057604 is the 138098-th square number.

It is an amenable number.

19071057604 is a deficient number, since it is larger than the sum of its proper divisors (15508340067).

19071057604 is an frugal number, since it uses more digits than its factorization.

19071057604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824 (or 2412 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 19071057604 in words is "nineteen billion, seventy-one million, fifty-seven thousand, six hundred four".